You explain great. I'm from Germany and I'm learning for the abitur. There are no good german videos about this topic, so i decided to watch yours, and i understood everything. Thanks !
holy shit, didnt know stuff like that is needed for the chemistry abitur. have to study this for ochem at university (biology) and i actually think its pretty hard...only had chemistry lessons until 10th grade though
Yeah yeah i know i'm 4 years late but still dude. Your videos are making my study sessions easy. I recomended you and your channel to everyone in my class. We are all grateful. Keep up the awesome work, cheers from Turkey
Thank you so much - once again, you've made a complex topic so clear. I love augmenting my class material with your videos. and they've been a lifesaver!
Midterm on Monday, did not pay attention in lecture. These videos are the most concise, info packed, and easy to follow than a lot of other videos. Thank you so so much for helping me get back on track!
Yeah yeah i know i'm 9 years late but still dude. Your videos are making my study sessions easy. I recomended you and your channel to everyone in my class. We are all grateful. Keep up the awesome work, cheers from Pakistan 🇵🇰
I am so thankful you have all of these videos! Trying to study for my organic two final and you are very clear and the reactions are starting to make sense. You're awesome!
Going to be honest, I've seen these videos recommended in the past and I never clicked on them because of that cheesy grin in the thumbnail. Man, have I been missing out. This video was great. Keep being awesome Professor Dave.
I always had confusion about this topic. Nobody had ever. Explained this in so simple manner . Loved the fantastic and concise explanation. Now I am able to solve opm directors very easily. Thanks a lot.
I am literally in my final undergrad year at a top 20 uni somewhere in the top 25% of my Chemistry class, and this stuff completely escaped my mind! Professor Dave is a life saver
Thanks for your videos !! I passed my orgo test last semester by watching all your videos for my final .. I have no idea how but I did !! And now I’m watching your videos for my midterm tomorrow :) thank you :) & I love your little jingle !!! It’s so cute !! :)
THANK YOU PROFESSOR DAVE this video explained this better than the past couple lectures I've had!! You're a life and grade saver, thanks for all your amazing hard work!
I am Japanese student and have known foreign studying contents are more impressive than our countries for me. I cant help but hearing EAS as IEYASU,who was Japanese general middle old era. I can’t convert all of thanks for you with my lack of experience. You let me enjoy science. Thank you science IEYASU SENSEI.
It’s so easy to understand when you explain it...that was very helpful, thanks a lot...Amazing work, Sir!!!...Cheers from India!!! I’m so glad I came to your channel
Have been watching your videos since Ochem 1 (this past summer) I'm so happy you have these! It's just a lot easier to conceptualize than just reading from the book. It just doesn't stick that way for me.
just wanted to clarify that electron withdrawing group like carbonyl is a meta directing group (3 or 5 carbon atom). you had shown benzaldehyde with -E group substituted in the 2nd carbon (ortho) = i would assume this is unfavourable and would favour the -E group on the 3rd or 5th carbon (not shown) instead as it is the least energetically unfavourable as it does not form the 3rd carbocation adjacent to the directing group.
I have a question, if we consider CF3 group in which carbon is attached to three flourine atoms so florine having excess of electrons should be able to donate electrons to the carbon atoms hence CF3 should become an electron donating group which would hence mean that it is an ortho para directing group. However, theres another concept that is bothering me, due to difference in the electronegativities in C and F, they form a polar bond where flourine attracts electrons towards itself because of greater electronegativity, this would mean that a positive charge is attained by the carbon atom and hence CF3 becomes electron withdrawing group or conversely meta director. Which one of these is right or is there a whole another concept?
yes the second thing you said is correct. fluorines will not donate to carbon. lone pairs donate by resonance, that carbon can't accept any more electrons by resonance. fluorines withdraw electron density by induction because they are highly electronegative. the carbon becomes very partially positive so it in turn withdraws from whatever it's on. CF3 is withdrawing.
depends on the reaction, if either the substituent on the ring or the incoming electrophile is bulky then para is preferred, otherwise ortho might dominate since there are two positions vs. one para, but usually you just end up with a mixture of the two.
+Professor Dave Explains ah Okay I understand! I have an exam coming up in August and thanks to your help, I think I'm gonna nail it. You're really good at explaining things! my teachers always leave the important details out, and you don't bring up anything unimportant, it's like a puzzle and you're explaining all the missing pieces. I let you know if I passed the exam :-)
+Professor Dave Explains by the way, are these carbocayions intermediates like in SN1 reactions or are they different resonance structures of the products?
yep they are distinct intermediates. technically carbocations, though we call them arenium ion intermediates, quite a bit different due to the resonance.
I almost cried out of happiness because I found your chanel
I just had this same thought as well
@Lochlan Noe i want to try, plz reply
Leave it to Gohan to worry about organic chemistry
lmaooo same I finally understood this wild ass topic that is called para ortho fuckery
4:54 Ortho para directing
6:37 meta directing
how can someone be this clear? I mean it was so easy to understand as if I know it already
You explain great. I'm from Germany and I'm learning for the abitur. There are no good german videos about this topic, so i decided to watch yours, and i understood everything. Thanks !
holy shit, didnt know stuff like that is needed for the chemistry abitur. have to study this for ochem at university (biology) and i actually think its pretty hard...only had chemistry lessons until 10th grade though
Same bro, I feel you.
@@Lumax96 How'd your university classes go?
@@PunmasterSTP ok after all. physical chem really effed me over, twice actually, but I finished my bachelors in 2020 :)
@@Lumax96 I'm glad to hear you got your degree! I took PChem too, and it was a beast.
Yeah yeah i know i'm 4 years late but still dude. Your videos are making my study sessions easy. I recomended you and your channel to everyone in my class. We are all grateful. Keep up the awesome work, cheers from Turkey
I'm two years later but I feel the exact same way!
I'm 9 yrs later and I too feel the same , from india
Thank you so much - once again, you've made a complex topic so clear. I love augmenting my class material with your videos. and they've been a lifesaver!
I'm just curious; how have your classes been going?
Jesus can teach me ochem any day
What
Dude. you have a gift to make this seemingly daunting chemistry to be so damn easy.
Midterm on Monday, did not pay attention in lecture. These videos are the most concise, info packed, and easy to follow than a lot of other videos. Thank you so so much for helping me get back on track!
9 years later, this video saved my life
Thankful for people like you who take the time to make these kinds of videos 🙏🏻
my pleasure! pretty please subscribe! :)
people like you make the world go round.... i got a orgo test in 10 hours and still learning muahahahaha
@Kim Clack asking after almost 2.5 years.hahahahahahahaha
@@alphagonist4748 He must remember, if it was a college degree he would remember if he got it or no xd
Hey how'd your exam go?
@@alphagonist4748 Haha, I just asked him five years after he wrote that comment!
@@PunmasterSTP nice
I wish you were my chem prof. in college. Awesome job!
So clear and concise. Again, thank you so much for making these videos. I can't explain how helpful they have been!
Yeah yeah i know i'm 9 years late but still dude. Your videos are making my study sessions easy. I recomended you and your channel to everyone in my class. We are all grateful. Keep up the awesome work, cheers from Pakistan 🇵🇰
By far the best explanation on this subject. Keep up the good work. Cheers!
Thank you, Chemistry Jesus.
Thank you sir for these organic chemistry classes . It is very helpfull during this lockdown periods..
From India
This is so explanatory... I wish I found this explanation earlier. Keep up the awesome job!!!
I am so thankful you have all of these videos! Trying to study for my organic two final and you are very clear and the reactions are starting to make sense. You're awesome!
How'd your final go?
Going to be honest, I've seen these videos recommended in the past and I never clicked on them because of that cheesy grin in the thumbnail. Man, have I been missing out. This video was great. Keep being awesome Professor Dave.
I always had confusion about this topic. Nobody had ever. Explained this in so simple manner . Loved the fantastic and concise explanation. Now I am able to solve opm directors very easily. Thanks a lot.
I am literally in my final undergrad year at a top 20 uni somewhere in the top 25% of my Chemistry class, and this stuff completely escaped my mind! Professor Dave is a life saver
Thanks for your videos !! I passed my orgo test last semester by watching all your videos for my final .. I have no idea how but I did !! And now I’m watching your videos for my midterm tomorrow :) thank you :) & I love your little jingle !!! It’s so cute !! :)
u r fantastic sir..deserve more subscribers
wait but how do you have 200+ subscribers? you have no videos haha
THANK YOU PROFESSOR DAVE this video explained this better than the past couple lectures I've had!! You're a life and grade saver, thanks for all your amazing hard work!
This video is so informative and has been so helpful! Please keep up the good work! You are making a huge difference!
thanks sir you make organic chemistry so logical and easy to understand
we r just blessed to have you..... keep it up.....
Simple, concise yet in-depth explanation of a difficult-to-grasp topic. Thanks for the much needed help (again). :)
Professor Dave, I love you♥️
This stuff kept on confusing me since 3 years and today boom! I'm all clear with concepts 💪
Your explanations are extremely lucid. Couldn't be more thankful to you!🙏
This video is the most lucid I've seen on the topic, thank you very much.
probably the best video i've seen till now...learnt the whole concept,,very thnkfull😊
Sir i am from India
Your lecture helps me a lot during lockdown to clear my basic concepts of chemistry
Love from India ❤️
best video on the concept I have seen!!! And I have been going through videos for hours now..... thank you so much prof. Dave
So helpful! such clear explanations :D amazing work sir! thank you.
Dave you are a legend thank you so much.
This video makes organic chemistry so much sense!!! Wow!!
THANK YOU SO MUCH! :)
I hope you create videos about Biochemistry next time. That'd be great!
+Jv Gamo biochemistry is coming next! probably over the summer.
I am Japanese student and have known foreign studying contents are more impressive than our countries for me.
I cant help but hearing EAS as IEYASU,who was Japanese general middle old era.
I can’t convert all of thanks for you with my lack of experience.
You let me enjoy science. Thank you science IEYASU SENSEI.
I have a exam tomorrow and I was pretty unsure of this topic until I watched your video. Thank you so much!!1
It’s so easy to understand when you explain it...that was very helpful, thanks a lot...Amazing work, Sir!!!...Cheers from India!!! I’m so glad I came to your channel
Have been watching your videos since Ochem 1 (this past summer) I'm so happy you have these! It's just a lot easier to conceptualize than just reading from the book. It just doesn't stick that way for me.
The best explanation so far on this topic!! Thanks a lot!
you are a great teacher,thanks for ur classes
Thank you for taking the time to make all your videos!
you r doing greaaaat work sir....awesome explanation...a lot of respect for u sir
9 years later still extremely helpful
just wanted to clarify that electron withdrawing group like carbonyl is a meta directing group (3 or 5 carbon atom). you had shown benzaldehyde with -E group substituted in the 2nd carbon (ortho) = i would assume this is unfavourable and would favour the -E group on the 3rd or 5th carbon (not shown) instead as it is the least energetically unfavourable as it does not form the 3rd carbocation adjacent to the directing group.
You never fail to correct my mind
Absolutely brilliant! Thank you so much!!!!!
Love the video's. Not only is the explanation really good. But it's actually fun to watch 😅
Thank you good sir.. have been struggling with this concept all day but now I get it thanks to you!
Watched it three times but finally got it!! Thank you so much Dave
why is it that you're better than my professor? THANK YOU
Tooooooo helpful for my exam in 3 days on my birthday !!!!!
he knows a lot about science stuff professor Dave explains
I am so glad I finally understood this! 🤘
Much easier to understand than the ones in my own language. Thanks Jesus!
I Love this man
i really didnt understand online lessons but you explain very well thank youuu
You are amazing sir... completely rocked the explanation..thanks for making such videos
Professor Dave is my savior
thanks prof. dave you really make it easy to understand ...
I had to miss class and I was able to catch up with this! thanks so much #lifesaver
Thanks a lot! Really helping us all out.
This was a BEAUTIFUL explanation.
Great work! thanks fa clearing my doubts ..
Hello, why weak activating groups like alkyl groups still wins strong deactivating groups like R-NO2?
I have a question, if we consider CF3 group in which carbon is attached to three flourine atoms so florine having excess of electrons should be able to donate electrons to the carbon atoms hence CF3 should become an electron donating group which would hence mean that it is an ortho para directing group. However, theres another concept that is bothering me, due to difference in the electronegativities in C and F, they form a polar bond where flourine attracts electrons towards itself because of greater electronegativity, this would mean that a positive charge is attained by the carbon atom and hence CF3 becomes electron withdrawing group or conversely meta director.
Which one of these is right or is there a whole another concept?
yes the second thing you said is correct. fluorines will not donate to carbon. lone pairs donate by resonance, that carbon can't accept any more electrons by resonance. fluorines withdraw electron density by induction because they are highly electronegative. the carbon becomes very partially positive so it in turn withdraws from whatever it's on. CF3 is withdrawing.
@@ProfessorDaveExplains Thankyou so much!
Thank you so much prof. it was really good lucture.. I have organic chemistry exam tomorrow and that was really useful 😊. .
It's a great video! It even helped me in a chemistry competition ! Thank you very much for sharing the knowledge with us!
well explained, thank you
You're awesome! Thank you so much
Thank you sir for this easily understandable explanation
Fantastic video, thanks.
thank god sir god bless you for saving my organic chemistry
Lol "It is the least energetically unfavourable" when I say this out loud it sounds so confusing
Great helpful video, thank you Pro Dave
had my organic final yesterday, it went well, thanks for the tutorials
You deserve 10 Million Subs Least.
Love you Chemistry Jesus😁❤!!!!
I Understood it very nicely thank you professor.
Awesome as always...
thank you sir! i m subscribing right now :) keep up with the great work
thanks professor it helps me a lot :)
Thank you so much for all your hard work at explaining.
Great teaching...
Love from India ❤️❤️
Thanks Sir for helping, i understood more about this Chap
GOOD , just GOOD and CLEAR
thank you SIR, love from India
wow this blew my mind, i understand now,
Thank you very much,Sir :)
this is amazing, you made learning chemistry fun again for me.
Best teacher on earth ❤
great video, but how do you know if it's gonna be orto or para? or does it give both products?
depends on the reaction, if either the substituent on the ring or the incoming electrophile is bulky then para is preferred, otherwise ortho might dominate since there are two positions vs. one para, but usually you just end up with a mixture of the two.
+Professor Dave Explains ah Okay I understand! I have an exam coming up in August and thanks to your help, I think I'm gonna nail it. You're really good at explaining things! my teachers always leave the important details out, and you don't bring up anything unimportant, it's like a puzzle and you're explaining all the missing pieces. I let you know if I passed the exam :-)
+Professor Dave Explains by the way, are these carbocayions intermediates like in SN1 reactions or are they different resonance structures of the products?
+Freshev carbocations*
yep they are distinct intermediates. technically carbocations, though we call them arenium ion intermediates, quite a bit different due to the resonance.
very clearly described video - thanks!
thank you so much! this was very helpful, really!
I wish you were my organic professor...
amazing explanation...
He has earned my subscription